XPCOM assumption of main thread inaccurate

[Rick Marvin]

nsresult NS_COM NS_InitXPCOM2(const char* productName,
                             nsIServiceManager* *result,
                             nsIFile* binDirectory
)
{ ....
    rv = nsIThread::SetMainThread();  <- set gMainThread to current thread.



nsresult NS_COM NS_ShutdownXPCOM(nsIServiceManager* servMgr)
{
 .......
    nsThread::Shutdown();  <-  This calls exit on current thread.  This
causes a double call to exit when XPCOM is running in a child thread; which
also calls exit on clean up.


nsThread::Shutdown()
{
    if (gMainThread)  <- should rather check that gMainThread is equal to
main thread.
 {
        // XXX nspr doesn't seem to be calling the main thread's destructor
        // callback, so let's help it out:
        nsThread::Exit(NS_STATIC_CAST(nsThread*, gMainThread));
        nsrefcnt cnt;
        NS_RELEASE2(gMainThread, cnt);
        NS_WARN_IF_FALSE(cnt == 0, "Main thread being held past XPCOM
shutdown.");
    }
}

needs to verfiy that g